I just got back from Norway (so my body has no idea what time it actually is right now...), and one of the conversations I had while there was about data binding a TextBox to an object's property that is a Nullable<T> - like Nullable(Of Integer) or something.

Somehow I had expected that Windows Forms would have anticipated this (obvious) concept and would handle it. Not so...

Fortunately, as a result of this conversation, one of the people at the conference took some of the ideas we were tossing around and came up with an extender control to address the issue. Very nice!